31421340322 has 8 divisors (see below), whose sum is σ = 47228792256. Its totient is φ = 15678409572.

The previous prime is 31421340187. The next prime is 31421340323. The reversal of 31421340322 is 22304312413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (31421340323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16129078 + ... + 16131025.

It is an arithmetic number, because the mean of its divisors is an integer number (5903599032).

Almost surely, 2^31421340322 is an apocalyptic number.

31421340322 is a deficient number, since it is larger than the sum of its proper divisors (15807451934).

31421340322 is a wasteful number, since it uses less digits than its factorization.

31421340322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32260592.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 31421340322 its reverse (22304312413), we get a palindrome (53725652735).

The spelling of 31421340322 in words is "thirty-one billion, four hundred twenty-one million, three hundred forty thousand, three hundred twenty-two".